220020400342 has 16 divisors (see below), whose sum is σ = 332431117200. Its totient is φ = 109210152960.

The previous prime is 220020400297. The next prime is 220020400343. The reversal of 220020400342 is 243004020022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020400343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4906342 + ... + 4950982.

It is an arithmetic number, because the mean of its divisors is an integer number (20776944825).

Almost surely, 2^220020400342 is an apocalyptic number.

220020400342 is a deficient number, since it is larger than the sum of its proper divisors (112410716858).

220020400342 is a wasteful number, since it uses less digits than its factorization.

220020400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62511.

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 220020400342 its reverse (243004020022), we get a palindrome (463024420364).

The spelling of 220020400342 in words is "two hundred twenty billion, twenty million, four hundred thousand, three hundred forty-two".